[1]何毅,王飞,穆兴民,等.近60年关中一天水经济区降水量特征分析[J].水土保持研究,2012,19(01):65-69.
　HE Yi,WANG Fei,MU Xing-min,et al.Analysis on Characteristic of Precipitation in Guanzhong-Tianshui Economic Zone in Recent 60 Years[J].Research of Soil and Water Conservation,2012,19(01):65-69.
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近60年关中一天水经济区降水量特征分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年01期 页码: 65-69 栏目: 出版日期: 2012-02-20
Title:
Analysis on Characteristic of Precipitation in Guanzhong-Tianshui Economic Zone in Recent 60 Years
作者:
何毅1, 王飞1,2, 穆兴民1,2, 张文帅2,3, 焦俏1, 李锐1,2
1. 西北农林科技大学 资源环境学院, 陕西 杨凌 712100;
2. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100;
3. 中国科学院研究生院, 北京 100049
Author(s):
HE Yi1, WANG Fei1,2, MU Xing-min1,2, ZHANG Wen-shuai2,3, JIAO Qiao1, LI Rui1,2
1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
气候变化; 降水; 降水日数; 时空变化; 关中—天水经济区
Keywords:
climate change; precipitation; precipitation days; temporal and spatial variation; Guanzhong—Tianshui economic zone
分类号:
P426.61+3
摘要:
降水等气候要素变化将会影响农业生产。采用传统统计、空间插值和距平累积分析等方法，对关中—天水经济区及其周边26个代表性气象站点1951—2009年59 a系列的降水实测资料进行了分析。结果表明：（1）降水量从西北向东南递增，不同的降雨强度在各年代分布不均，并且降水日数与降水量变化不完全一致。（2） 1950s—1970s降水量减少，1980s后降水量增加，进入1990s后，降水量又开始减少，2000年后降水量略有增加。（3）降水量变化特征大致可分为3个阶段。大部分站点年降水量1968年或1975年以前高于多年平均降水量，1968—1990年或1975—1990年期间，年降水量围绕多年平均降水量震荡，1990年后，降水量普遍低于多年平均值。
Abstract:
Climate factors including precipitation have significant effects on agricultural production. Traditional statistics, spatial interpolation and accumulated variance analysis methods are applied to analyze the change characteristics of precipitation in Guanzhong—Tianshui economic zone, based on the precipitation data of 26 weather stations in and around this region during 1951—2009. Results showed that: (1) Annual average rainfall increased gradually from northwest to southeast. The rainfall intensity distribution in this region is not even during decadal, and the changes of rainy days and precipitation are inconsistent; (2) The precipitation decreased from 1950s to 1970s, increased in 1980s, then began to decrease in 1990s, precipitation went up slightly after 2000; (3) The variation of precipitation could be divided into 3 stages. The precipitation of most of weather stations before 1968 or 1975 was more than the mean for many years, the precipitation between 1968 and 1990 or during 1975 to 1990 fluctuated at the mean for many years, and then precipitation was less than the mean for many years after 1990.

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备注/Memo

收稿日期:2011-7-21;改回日期:2011-9-8。
基金项目:中国科学院对外合作重点项目计划（CAS，GJHZ1018）；Netherlands Organization for Scientific Research（NWO，OND1339291）（中荷联合主题研究项目）；欧盟第六框架计划项目（EUFP6，37046）；国家科技支撑计划项目（2006BAD09B00）
作者简介:何毅（1985- ），男，广西梧州市人，硕士研究生，主要从事气候变化和GIS应用方面研究。E-mail：hy1985006@163.com
通讯作者:王飞（1971- ），男，陕西户县人，博士，副研究员，主要从事水土保持环境效应评价、荒漠化防治和气候变化等研究。E-mail：wafe@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01